The Sitemap XML protocol is also extended to provide a way of listing multiple Sitemaps in a 'Sitemap index' file. The maximum Sitemap size of 50 MiB or 50,000 URLs means this is necessary for large sites. An example of Sitemap index referencing one separate sitemap follows.
Cultural or artificial eutrophication occurs when human activity introduces increased amounts of these nutrients, which speed up plant growth and eventually choke the lake of all of its animal life.n nature, eutrophication is a common phenomenon in freshwater ecosystems and is really a part of the normal aging process of many lakes and ponds. Some never experience it because of a lack of warmth and light, but many do.
ï®The term âphysical activityâ describes many. forms of movement, including activities that. involve the large skeletal muscles. ï®. Activities that involve the small skeletal. muscles (e.g. playing board games, drawing, writing) are important, but they do not provide. the health benefits of activities that involve the. large skeletal muscles and require substantial. energy expenditure. Physical activity is defined by its.